Display apparatus including display module and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-12501754-B2
Application number	US-202218074075-A
Country	US
Kind code	B2
Filing date	Dec 2, 2022
Priority date	Dec 17, 2021
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

A display module is provided. The display module includes a substrate including a mounting surface, on which a plurality of inorganic light emitting devices is mounted, and a side surface; a front cover covering the mounting surface and including a side end that is in a region outwards from the mounting surface; a side cover covering the side surface of the substrate and bonded to a lower surface of the front cover, corresponding to the region outwards from the mounting surface, and the side surface of the substrate; and a light absorbing end member covering the side end of the front cover and configured to prevent light, emitted from the plurality of inorganic light emitting devices, from passing through the side end of the front cover.

First claim

What is claimed is:

1 . A display module comprising:
a substrate comprising a mounting surface, on which a plurality of inorganic light emitting devices is mounted, and a side surface, wherein the mounting surface faces in a first direction and extends in a second direction; a front cover covering the mounting surface and comprising a side end in a region outwards from the mounting surface in the second direction; a side cover covering and sealing the side surface of the substrate and bonded to a lower surface of the front cover, corresponding to the region outwards from the mounting surface, and the side surface of the substrate; and a light absorbing end member covering the side end of the front cover and configured to prevent light, emitted from the plurality of inorganic light emitting devices, from passing through the side end of the front cover, wherein the light absorbing end member covers at least a portion of a side end of the side cover to seal the front cover and the side cover.

2 . The display module of claim 1 , wherein the light absorbing end member extends from an upper end of the side end of the front cover in a direction opposite to the first direction.

3 . The display module of claim 2 , wherein the light absorbing end member extends from the upper end of the side end of the front cover in the direction opposite to the first direction to cover at least a portion of the side cover.

4 . The display module of claim 1 , further comprising:
a metal plate provided on a rear surface of the substrate, the rear surface being a side of the substrate opposite to the mounting surface; and a ground member covering at least a portion of the side end of the side cover and in contact with the metal plate to be grounded with the metal plate.

5 . The display module of claim 4 , wherein the light absorbing end member extends from an upper end of the side end of the front cover in a direction opposite to the first direction to cover at least a portion of the side end of the side cover, and
wherein the ground member is between the side end of the side cover and the light absorbing end member.

6 . The display module of claim 1 , wherein the light absorbing end member comprises a light-absorbing material.

7 . The display module of claim 6 , wherein the side cover comprises a light-absorbing material.

8 . The display module of claim 1 , wherein the light absorbing end member has a black color.

9 . The display module of claim 8 , wherein the side cover has the black color.

10 . The display module of claim 4 , wherein the ground member comprises a metal material.

11 . The display module of claim 10 , wherein the ground member has a higher conductivity than a conductivity of the side cover.

12 . The display module of claim 1 , wherein the side end of the front cover and a side end of the side cover are arranged on a same line that extends in the first direction, and
wherein each of the side end of the front cover and the side end of the side cover face in the second direction.

13 . A display apparatus comprising:
a display module array comprising a plurality of display modules horizontally arranged in an M*N matrix, wherein the plurality of display modules comprises:
a first display module comprising:
a first substrate comprising a first mounting surface, on which a plurality of first inorganic light emitting devices is mounted, and a first side surface facing in a second direction, the first mounting surface facing in a first direction and extending in the second direction;
a first front cover covering the first mounting surface and comprising a first side end in a first region outwards from the first mounting surface in the second direction;
a first side cover covering and sealing the first side surface of the first substrate and bonded to a lower surface of the first front cover, corresponding to the first region outside the first mounting surface, and the first side surface of the first substrate; and
a first light absorbing end member covering the first side end of the first front cover and configured to prevent light, emitted from the plurality of first inorganic light emitting devices, from passing through the first side end of the first front cover, wherein the first light absorbing end member covers at least a portion of a side end of the first side cover to seal the first front cover and the first side cover; and

a second display module adjacent to the first display module in the second direction, the second display module comprising:
a second substrate comprising a second mounting surface, on which a plurality of second inorganic light emitting devices is mounted, and a second side surface facing in a third direction opposite to the second direction, the second mounting surface facing in the first direction and extending in the second direction;
a second front cover covering the second mounting surface and comprising a second side end in a second region outwards from the second mounting surface in the third direction;
a second side cover covering and sealing the second side surface of the second substrate and bonded to a lower surface of the second front cover, corresponding to the second region outside the second mounting surface, and the second side surface of the second substrate; and
a second light absorbing end member covering the second side end of the second front cover and configured to prevent light, emitted from the plurality of second inorganic light emitting devices, from passing through the second side end of the second front cover, wherein the second light absorbing end member covers at least a portion of a side end of the second side cover to seal the second front cover and the second side cover.

14 . The display apparatus of claim 13 , wherein the first light absorbing end member extends from an upper end of the first side end of the first front cover in a direction opposite to the first direction.

15 . The display apparatus of claim 14 , wherein the first light absorbing end member extends from the upper end of the first side end of the first front cover in the direction opposite to the first direction such as to cover at least a portion of the first side cover.

16 . A method of manufacturing a display apparatus, the method comprising:
covering a mounting surface, on which a plurality of inorganic light emitting devices is mounted, of a substrate with a front cover, wherein the mounting surface faces in a first direction and extends in a second direction, and the front cover includes a side end that is in a region outwards from the mounting surface in the second direction; providing a side cover such that the side cover covers and seals a side surface of the substrate, and is bonded to a lower surface of the front cover, corresponding to the region outwards from the mounting surface in the second direction, and the side surface of the substrate; and covering the side end of the front cover with a light absorbing end member configured to prevent light, emitted from the plurality of inorganic light emitting devices, from passing through the side end of the front cover, wherein the light absorbing end member covers at least a portion of a side end of the side cover to seal the front cover and the side cover.

17 . The method of claim 16 , wherein the light absorbing end member extends from an upper end of the side end of the front cover in a direction opposite to the first direction.

18 . The method of claim 17 , wherein the light absorbing end member extends from the upper end of

Assignees

• Samsung Electronics Co Ltd

Inventors

• Shin Seonghwan
• Kim Gunwoo
• Kim Hyunsun
• Son Yangsoo
• Lee Tackmo
• Han Jeongin
• Hong Soonmin

Classifications

• H10W90/732

  between stacked chips · CPC title

• H10W72/074

  of anisotropic conductive adhesives · CPC title

• H10W90/00

  Package configurations · CPC title

• H10H20/0363

  of optical field-shaping means · CPC title

• H10H20/813

  having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies · CPC title